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新疆属典型的大陆性气候,冬季严寒多雪,夏季炎 热少雨,昼夜温差大,白天日照长,全靠引水灌溉,适 宜于棉花的生长发育。为了夺取棉花高产,当前各单位一般从苗期开始进行人工和机力中耕松土除草,一般三至四次,多则达五次以上。但到棉花生长发育中后期,机力不能进地,稍一放松田间管理,就会形成草害,给产量和品质造成很大影响。近几年来,我区国营农场在棉田进行了化学除草的试验、示范和推广工作,取得较好的效果,找到了除草增产的好途径。同时促进了棉花种植耕作制度的改进,为棉花高密度种植创造了条件。
Xinjiang is a typical continental climate. It is cold and snowy in winter, hot and drier in summer, with large temperature difference between day and night and long daytime sunshine. It is all based on water diversion irrigation and is suitable for the growth and development of cotton. In order to seize the high yield of cotton, the current units generally start from the seedling stage of artificial and mechanical tillage loosening weeds, usually three to four times, up to more than five times. However, the latter part of cotton growth and development, mechanical power can not enter the ground, relax a little field management, it will form grass-roots damage to the yield and quality have a significant impact. In recent years, our state-run farms conducted tests, demonstration and popularization of chemical weed control in cotton fields, achieved good results and found a good way to increase their weed production. At the same time, it has promoted the improvement of cotton planting and tillage system and created the conditions for cotton high-density planting.